.exam {
				width: 55%;
				height: 540px;
				border: 1px solid gainsboro;
				box-shadow: 0 0 5px gray;
			}
			
			.exam-s {
				height: 30px;
				width: 300px;
				float: right;
				margin: 50px 50px 0 0;
			}
			
			.exam-ss {
				float: right;
				border: 1px gray solid;
			}
			
			.exam-ss img {
				margin: 0 2px -8px 0;
				height: 24px;
				width: 24px;
			}
			
			.exam-ss input {
				height: 24px;
				border: none;
				outline: none;
			}
			
			.exam-til{
				float: left;
				font-size: 20px; margin: 30px 0 0 50px;
			}
			
			.exam-son{
				border-top: 1px gainsboro solid;
				width: 960px;
				height: 400px;
				margin: 140px 0 0 0;
				overflow: auto;
				
			}
			.exam-tks{
				position: absolute;
				margin: 90px 0 0 50px;
				border-bottom: 3px solid orangered;
				height: 50px;
				width: 120px;
				text-align: center;
			}	
			
			.exam-sj{
				float: left;
				margin: 23px 0 0 23px ;
				width: 436px;
				height: 180px;
				border: 1px solid gainsboro;
				background-color: whitesmoke;
			}
			li{
				list-style: none;
				
			}
			
			li button{
				background-color: white;
				border: 1px solid gainsboro;
				height: 30px ;
				width: 80px;
			}
		
		.exam-xx{
				float: left;
				margin-left: -30px;
		}
		
		.exam-cj{
			margin-left: 300px;
		}

.exam-fs {
	margin-right: 50px;
	font-size: 40px;
	color: orangered;
}

.exam-f{
	margin: -72px 0 0 372px ;
	height: 20px ;
	width: 100px;
}
